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Lynqu

Create and share smart digital business cards for free. Scan paper cards with AI, share via QR code or link, and add to Apple & Google Wallet.

Marketing
Hungary Estimated origin: Hungary

Added April 28, 2026 · Last analysed April 28, 2026 · via · 33% unique tagline (similar to TapCV)

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 28 April 2026; the live site may have changed since.

Lynqu scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Visible gaps: tracking cookies set before any opt-in.

Launched on Product Hunt on April 28, 2026. The site is served through Cloudflare, with a domain registered in 2024. We've detected 20 technologies on this site, covering auth, advertising, analytics, and baas. The stack includes Apple Sign In, Auth.js, and Google Sign-In.

It's on one of the most common stacks we track, shared by 291 launches and more locked down than the typical Product Hunt launch.

If you own this site, refresh the snapshot and see the full fix list any time →

9.7
StackScope Score
Excellent
88/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
2/2 Crawl files
Complete
Vibe Score 15 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (20) · Indie stack

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Business email Microsoft 365
Email marketing HubSpot
Build & Framework
Auth Apple Sign In
Auth.js (2)
Google Sign-In
BaaS Firebase (2)
Captcha Cloudflare Turnstile
CSS framework Tailwind CSS
Framework React
Mobile Apple App Store
Video YouTube
Analytics & Marketing
Advertising Google Ads
Analytics Google Analytics (4)
SEO Google Search Console
Tag management Google Tag Manager
Commerce & Payments
Payments Stripe (4)

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 28 Mar 2026 to 26 Jun 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1.7 years
Registered Nov 2024 · Squarespace Domains LLC

Email Security

SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=reject Reject (strict). Strong.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (12)

Cookies (7)
NameLifetimeDetected as
m 1y -
_ga 1y Google Analytics
_ga_2JNX8RBJP3 1y Google Analytics
__Host-next-auth.csrf-token session Auth.js
__Secure-next-auth.callback-url < 1h Auth.js
__stripe_mid 1y Stripe
__stripe_sid < 1h Stripe
Local storage (2)
KeySizeDetected as
lynqu-theme-migrated 1 B -
nextauth.message 74 B Auth.js
Session storage (1)
KeySizeDetected as
geo_currency 3 B -
IndexedDB (2)
DatabaseVersionDetected as
firebase-heartbeat-database 1 Firebase
firebase-installations-database 1 Firebase

Readiness Breakdown How?

Custom title and meta description (partial) missing custom <title>
Open Graph tags (title, image, description)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)

Vibe Score Breakdown How?

SignalPoints
AI palette signals +5
AI writing signals +5
AI layout signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers
llms.txt published
1 AI bot blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (3 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacystatement
Terms of Service
/termsofservice
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
94% unique

Security Headers (6/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

108ms response time
Faster than 92% of sites
5 third-party domains loaded

Build

Code splitting
40 JS files
2 CSS files
5 Third-party domains

Brand Colours

App Manifest

Lynqu
display: standalone 2 icons
theme #111827
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.